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Title: Section-dependent microstructure and mechanical properties of rapidly solidified and extruded Al-20Si alloy

Abstract

The microstructure and mechanical properties of rapidly solidified and extruded Al-20Si alloys were studied by a combination of optical microscopy, scanning electron microscopy, X-ray diffraction, compression testing, and wear testing. The microstructure of the extruded bars showed a homogeneous distribution of different primary Si sizes and shapes embedded in the Al matrix depending on the section considered in the extruded bar. As the section changes from diagonal through perpendicular to parallel, the compressive yield strength increased from 219 through 225 to 263 MPa, respectively. The specific wear was the lowest at all sliding speeds for the parallel section in comparison to the perpendicular and diagonal sections of the extruded bar.

Authors:
; ;
Publication Date:
OSTI Identifier:
20888031
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 39; Journal Issue: 3; Other Information: DOI: 10.1016/j.materresbull.2003.10.021; PII: S0025540803003362; Copyright (c) 2003 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM ALLOYS; MAXIMUM PERMISSIBLE ACTIVITY; MICROSTRUCTURE; OPTICAL MICROSCOPY; OPTICAL PROPERTIES; SCANNING ELECTRON MICROSCOPY; SILICON ALLOYS; X-RAY DIFFRACTION; YIELD STRENGTH

Citation Formats

Hong, Soon-Jik, Suryanarayana, C., and Chun, Byong-Sun. Section-dependent microstructure and mechanical properties of rapidly solidified and extruded Al-20Si alloy. United States: N. p., 2004. Web. doi:10.1016/j.materresbull.2003.10.021.
Hong, Soon-Jik, Suryanarayana, C., & Chun, Byong-Sun. Section-dependent microstructure and mechanical properties of rapidly solidified and extruded Al-20Si alloy. United States. doi:10.1016/j.materresbull.2003.10.021.
Hong, Soon-Jik, Suryanarayana, C., and Chun, Byong-Sun. Mon . "Section-dependent microstructure and mechanical properties of rapidly solidified and extruded Al-20Si alloy". United States. doi:10.1016/j.materresbull.2003.10.021.
@article{osti_20888031,
title = {Section-dependent microstructure and mechanical properties of rapidly solidified and extruded Al-20Si alloy},
author = {Hong, Soon-Jik and Suryanarayana, C. and Chun, Byong-Sun},
abstractNote = {The microstructure and mechanical properties of rapidly solidified and extruded Al-20Si alloys were studied by a combination of optical microscopy, scanning electron microscopy, X-ray diffraction, compression testing, and wear testing. The microstructure of the extruded bars showed a homogeneous distribution of different primary Si sizes and shapes embedded in the Al matrix depending on the section considered in the extruded bar. As the section changes from diagonal through perpendicular to parallel, the compressive yield strength increased from 219 through 225 to 263 MPa, respectively. The specific wear was the lowest at all sliding speeds for the parallel section in comparison to the perpendicular and diagonal sections of the extruded bar.},
doi = {10.1016/j.materresbull.2003.10.021},
journal = {Materials Research Bulletin},
number = 3,
volume = 39,
place = {United States},
year = {Mon Mar 01 00:00:00 EST 2004},
month = {Mon Mar 01 00:00:00 EST 2004}
}